patch 8.2.4700: buffer remains active if WinClosed event throws an exception

Problem:    Buffer remains active if a WinClosed event throws an exception.
Solution:   Ignore aborting() when closing the buffer. (closes #10097)
diff --git a/src/testdir/test_autocmd.vim b/src/testdir/test_autocmd.vim
index 39ba9af..89023a1 100644
--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
Binary files differ
diff --git a/src/version.c b/src/version.c
index 120633f..6900961 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4700,
+/**/
     4699,
 /**/
     4698,
diff --git a/src/window.c b/src/window.c
index 30fa802..8ec4823 100644
--- a/src/window.c
+++ b/src/window.c
@@ -2493,7 +2493,7 @@
 
 	set_bufref(&bufref, curbuf);
 	win->w_closing = TRUE;
-	close_buffer(win, win->w_buffer, action, abort_if_last, FALSE);
+	close_buffer(win, win->w_buffer, action, abort_if_last, TRUE);
 	if (win_valid_any_tab(win))
 	    win->w_closing = FALSE;
 	// Make sure curbuf is valid. It can become invalid if 'bufhidden' is